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Finding the Fourth Proportional to 8,695.99, 12,000.25 and 4,969.75

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Solution

The fourth proportional to 8,695.99, 12,000.25 and 4,969.75 is: 6,858.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,695.99 : 12,000.25 = 4,969.75 : x
  2. Step 2: Convert to fraction form
    8,695.99/12,000.25 = 4,969.75/x
  3. Step 3: Cross multiply
    8,695.99x = 12,000.25 × 4,969.75
  4. Step 4: Simplify right side
    8,695.99x = 59,638,242.44
  5. Step 5: Solve for x
    x = 59,638,242.44/8,695.99
  6. Step 6: Final answer
    x = 6,858.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.